Traditional "classical" wedding music:

Wedding March ("Here Comes the Bride")

Mendelssohn's Wedding March

Trumpet Voluntary

Prelude in C Major from WTC I (J.S. Bach)

Spring (Vivaldi)

Can't Help Falling in Love (Elvis)

Unchained Melody (Righteous Brothers)

Perfect (Ed Sheeran)

Thinking Out Loud (Ed Sheeran)

Days Like This (Van Morrison)

You Are the Best Thing (Ray LaMontagne)

My Girl (Temptations)

Just My Imagination (Temptations)

Isn't She Lovely (Stevie Wonder)

Let's Stay Together (Al Green)

You Really Got A Hold on Me (Smokey Robinson)

Cruisin' (Smokey Robinson)

Cupid (Sam Cooke)

Marry You (Bruno Mars)

Leave the Door Open (Silk Sonic)

A Thousand Years (Christina Perri)

A Thousand Miles (Vanessa Carlton)

Beatles Songs, including:

Something

In My Life

All My Loving

All I Gotta Do

And I Love Her